Hold on.

Tony Stewart (20) goes airborne in a crash that involved 19 cars, many of whom were knocked out of the race. A horrifying wreck on Lap 176 involved 19 cars and gave Tony Stewart a concussion.

Tony Stewart (20) goes airborne in a crash that involved 19 cars, many of whom were knocked out of the race. A horrifying wreck on Lap 176 involved 19 cars and gave Tony Stewart a concussion. (ASSOCIATED PRESS)

Tony Stewart (20) goes airborne in a crash that involved 19 cars, many of whom were knocked out of the race. A horrifying wreck on Lap 176 involved 19 cars and gave Tony Stewart a concussion.